<http://schema.org/description>
"\u66FE\u7ECF\uFF0C\u56FE\u4E66\u9986\u5BF9\u6211\u6765\u8BF4\u662F\u5723\u5730\u7684\u5B58\u5728\uFF0C\u5982\u4ECA\u9003\u79BB\u56FE\u4E66\u9986ing"^^<http://www.w3.org/2001/XMLSchema#string>
<https://catfan.me/yqjun/p238490>